#[non_exhaustive]pub enum Ac3DynamicRangeCompressionProfile {
FilmStandard,
None,
Unknown(UnknownVariantValue),
}
Expand description
When writing a match expression against Ac3DynamicRangeCompressionProfile
, it is important to ensure
your code is forward-compatible. That is, if a match arm handles a case for a
feature that is supported by the service but has not been represented as an enum
variant in a current version of SDK, your code should continue to work when you
upgrade SDK to a future version in which the enum does include a variant for that
feature.
Here is an example of how you can make a match expression forward-compatible:
# let ac3dynamicrangecompressionprofile = unimplemented!();
match ac3dynamicrangecompressionprofile {
Ac3DynamicRangeCompressionProfile::FilmStandard => { /* ... */ },
Ac3DynamicRangeCompressionProfile::None => { /* ... */ },
other @ _ if other.as_str() == "NewFeature" => { /* handles a case for `NewFeature` */ },
_ => { /* ... */ },
}
The above code demonstrates that when ac3dynamicrangecompressionprofile
represents
NewFeature
, the execution path will lead to the second last match arm,
even though the enum does not contain a variant Ac3DynamicRangeCompressionProfile::NewFeature
in the current version of SDK. The reason is that the variable other
,
created by the @
operator, is bound to
Ac3DynamicRangeCompressionProfile::Unknown(UnknownVariantValue("NewFeature".to_owned()))
and calling as_str
on it yields "NewFeature"
.
This match expression is forward-compatible when executed with a newer
version of SDK where the variant Ac3DynamicRangeCompressionProfile::NewFeature
is defined.
Specifically, when ac3dynamicrangecompressionprofile
represents NewFeature
,
the execution path will hit the second last match arm as before by virtue of
calling as_str
on Ac3DynamicRangeCompressionProfile::NewFeature
also yielding "NewFeature"
.
Explicitly matching on the Unknown
variant should
be avoided for two reasons:
- The inner data
UnknownVariantValue
is opaque, and no further information can be extracted. - It might inadvertently shadow other intended match arms. When you want to add Dolby dynamic range compression (DRC) signaling to your output stream, we recommend that you use the mode-specific settings instead of Dynamic range compression profile. The mode-specific settings are Dynamic range compression profile, line mode and Dynamic range compression profile, RF mode. Note that when you specify values for all three settings, MediaConvert ignores the value of this setting in favor of the mode-specific settings. If you do use this setting instead of the mode-specific settings, choose None to leave out DRC signaling. Keep the default Film standard to set the profile to Dolby’s film standard profile for all operating modes.
Variants (Non-exhaustive)§
This enum is marked as non-exhaustive
FilmStandard
None
Unknown(UnknownVariantValue)
Unknown
. See the docs on this enum for the correct way to handle unknown variants.Unknown
contains new variants that have been added since this code was generated.
Implementations§
source§impl Ac3DynamicRangeCompressionProfile
impl Ac3DynamicRangeCompressionProfile
sourcepub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
pub fn try_parse(value: &str) -> Result<Self, UnknownVariantError>
Parses the enum value while disallowing unknown variants.
Unknown variants will result in an error.
Trait Implementations§
source§impl AsRef<str> for Ac3DynamicRangeCompressionProfile
impl AsRef<str> for Ac3DynamicRangeCompressionProfile
source§impl Clone for Ac3DynamicRangeCompressionProfile
impl Clone for Ac3DynamicRangeCompressionProfile
source§fn clone(&self) -> Ac3DynamicRangeCompressionProfile
fn clone(&self) -> Ac3DynamicRangeCompressionProfile
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl From<&str> for Ac3DynamicRangeCompressionProfile
impl From<&str> for Ac3DynamicRangeCompressionProfile
source§impl Ord for Ac3DynamicRangeCompressionProfile
impl Ord for Ac3DynamicRangeCompressionProfile
source§fn cmp(&self, other: &Ac3DynamicRangeCompressionProfile) -> Ordering
fn cmp(&self, other: &Ac3DynamicRangeCompressionProfile) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
source§impl PartialEq for Ac3DynamicRangeCompressionProfile
impl PartialEq for Ac3DynamicRangeCompressionProfile
source§fn eq(&self, other: &Ac3DynamicRangeCompressionProfile) -> bool
fn eq(&self, other: &Ac3DynamicRangeCompressionProfile) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd for Ac3DynamicRangeCompressionProfile
impl PartialOrd for Ac3DynamicRangeCompressionProfile
source§fn partial_cmp(
&self,
other: &Ac3DynamicRangeCompressionProfile
) -> Option<Ordering>
fn partial_cmp( &self, other: &Ac3DynamicRangeCompressionProfile ) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl Eq for Ac3DynamicRangeCompressionProfile
impl StructuralPartialEq for Ac3DynamicRangeCompressionProfile
Auto Trait Implementations§
impl Freeze for Ac3DynamicRangeCompressionProfile
impl RefUnwindSafe for Ac3DynamicRangeCompressionProfile
impl Send for Ac3DynamicRangeCompressionProfile
impl Sync for Ac3DynamicRangeCompressionProfile
impl Unpin for Ac3DynamicRangeCompressionProfile
impl UnwindSafe for Ac3DynamicRangeCompressionProfile
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more